Search Images Maps Play YouTube News Gmail Drive More »
Sign in
Screen reader users: click this link for accessible mode. Accessible mode has the same essential features but works better with your reader.

Patents

  1. Advanced Patent Search
Publication numberEP0303474 A3
Publication typeApplication
Application numberEP19880307413
Publication date12 Jul 1989
Filing date10 Aug 1988
Priority date11 Aug 1987
Also published asDE3854851D1, DE3854851T2, DE3856285D1, DE3856285T2, EP0303474A2, EP0303474B1, EP0670528A2, EP0670528A3, EP0670528B1, US5194945, US5726779
Publication number1988307413, 88307413, 88307413.10, EP 0303474 A3, EP 0303474A3, EP-A3-0303474, EP0303474 A3, EP0303474A3, EP19880307413, EP88307413
InventorsToshihiro Kadowaki, Tetsuya Ohnishi, Yoshinori Ikeda
ApplicantCanon Kabushiki Kaisha
Export CitationBiBTeX, EndNote, RefMan
External Links: Espacenet, EP Register
Color image processing apparatus
EP 0303474 A3
Abstract  available in
Description  available in
Claims  available in
Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
EP0145801A1 *14 Dec 198326 Jun 1985DR.-ING. RUDOLF HELL GmbHMethod of and circuit arrangement for the selective correction of tints and colours
EP0168818A2 *16 Jul 198522 Jan 1986Kabushiki Kaisha ToshibaColor image copying apparatus
GB2069794A * Title not available
US4204728 *23 May 197827 May 1980Canon Kabushiki KaishaMethod and apparatus for color conversion
US4472736 *29 Jun 198118 Sep 1984Dainippon Ink And Chemicals IncorporatedLithographic reproduction original classification and color separation tone curve adjustment
US4639771 *30 Oct 198527 Jan 1987Kabushiki Kaisha ToshibaImage processing system
Classifications
International ClassificationG03F3/08, H04N1/62, G03G15/01
Cooperative ClassificationG03G15/01, H04N1/62
European ClassificationG03G15/01, H04N1/62
Legal Events
DateCodeEventDescription
15 Feb 1989AKDesignated contracting states:
Kind code of ref document: A2
Designated state(s): DE FR GB IT
12 Jul 1989AKDesignated contracting states:
Kind code of ref document: A3
Designated state(s): DE FR GB IT
21 Mar 199017PRequest for examination filed
Effective date: 19891201
29 Jan 199217QFirst examination report
Effective date: 19911218
3 Jan 1996AKDesignated contracting states:
Kind code of ref document: B1
Designated state(s): DE FR GB IT
3 Jan 1996XXMiscellaneous:
Free format text: TEILANMELDUNG 95201256.5 EINGEREICHT AM 10/08/88.
15 Feb 1996REFCorresponds to:
Ref document number: 3854851
Country of ref document: DE
Date of ref document: 19960215
22 Mar 1996ETFr: translation filed
2 Apr 1996ITFIt: translation for a ep patent filed
Owner name: SOCIETA' ITALIANA BREVETTI S.P.A.
27 Dec 199626NNo opposition filed
1 Jan 2002REGReference to a national code
Ref country code: GB
Ref legal event code: IF02
31 Aug 2007PGFPPostgrant: annual fees paid to national office
Ref country code: DE
Payment date: 20070831
Year of fee payment: 20
2 Jan 2008PGFPPostgrant: annual fees paid to national office
Ref country code: GB
Payment date: 20070813
Year of fee payment: 20
31 Jan 2008PGFPPostgrant: annual fees paid to national office
Ref country code: IT
Payment date: 20070711
Year of fee payment: 20
30 Apr 2008PGFPPostgrant: annual fees paid to national office
Ref country code: FR
Payment date: 20070820
Year of fee payment: 20
3 Sep 2008REGReference to a national code
Ref country code: GB
Ref legal event code: PE20
Expiry date: 20080809
31 Dec 2008PG25Lapsed in a contracting state announced via postgrant inform. from nat. office to epo
Ref country code: GB
Free format text: LAPSE BECAUSE OF EXPIRATION OF PROTECTION
Effective date: 20080809